| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [verb] to [verb] | 10 |
|
| 2 | it [vb mod] [vb infin] to [verb] | 10 |
|
| 3 | it [vb mod] [verb] to [v-ing] | 9 |
|
